// test_datread.java  tests  datread.java  Utah Graphics 3D file

public class test_datread
{
  double xmin, xmax, ymin, ymax, zmin, zmax;
    
  public test_datread(String filename)
  {
    int pts, pt, k;

    System.out.println("test_datread.java reading "+filename);
    datread DR = new datread(filename); // defines data structures

    System.out.println("num_points="+DR.num_points+
                       ", num_polys="+DR.num_polys);
    for(int i=0; i<DR.num_points; i++) // vertices
    {
	System.out.println(+(i+1)+"  "+DR.data_points[i].x+
                           "  "+DR.data_points[i].y+"  "+DR.data_points[i].z);
      if(i==0)
      {
	xmin = DR.data_points[i].x;
	xmax = DR.data_points[i].x;
	ymin = DR.data_points[i].y;
	ymax = DR.data_points[i].y;
	zmin = DR.data_points[i].z;
	zmax = DR.data_points[i].z;
      }
      else
      {
	xmin = Math.min(xmin, DR.data_points[i].x);
	xmax = Math.max(xmax, DR.data_points[i].x);
	ymin = Math.min(ymin, DR.data_points[i].y);
	ymax = Math.max(ymax, DR.data_points[i].y);
	zmin = Math.min(zmin, DR.data_points[i].z);
	zmax = Math.max(zmax, DR.data_points[i].z);
      }
    } // end print vertices

    k = 0; // polygons
    for(int i=0; i<DR.num_polys; i++)
    {
      pts = DR.data_polys[k++];
      System.out.print(+pts); // no cr
      for(int j=0; j<pts; j++)
      {
        pt = DR.data_polys[k++];
        System.out.print(" "+ pt);
      }
      System.out.println(" ");
    } // end print polys

    System.out.println(" ");
    System.out.println("xmin="+xmin+", xmax="+xmax);
    System.out.println("ymin="+ymin+", ymax="+ymax);
    System.out.println("zmin="+zmin+", zmax="+zmax);
    System.out.println("test_datread.java finished");
  }

  public static void main (String[] args)
  {
    String filename = new String("star3t.dat");
    if(args.length>=1)
	filename = new String(args[0]);
    System.out.println("reading "+filename);
    new test_datread(filename);
  }
} // end class testdatread